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Question

Device "X" converts electrical energy to mechanical energy whereas device "Y" converts mechanical energy to electrical energy. Identify the devices "X" and "Y" from the options.


A

X:- Television

Y:- Electric generator

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B

X:- Electric generator

Y:- Mixer grinder

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C

X:- Television

Y:- Loudspeaker

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D

X:- Washing machine

Y:- Electric generator

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Solution

The correct option is D

X:- Washing machine

Y:- Electric generator


A washing machine is a device which converts input electrical energy into output mechanical energy which is further used to wash clothes.

An electric generator is a device which converts input mechanical energy into output electrical energy.

A loudspeaker is a device which converts input electrical energy to output sound energy while television converts input electrical energy to output light and sound energy.


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